/**  
* @Title: BeanUtil.java
* @Package com.lenovo.service.utils
* @author <a href="mailto:125671254@qq.com">Pan Xinwen</a>panxinwen
* @date 2018年4月29日 下午7:25:08
* @version V1.0  
*/ 
package com.treasure.service.third.utils;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

/**
* @ClassName: BeanUtil
* @Description: TODO(手动获取容器内的bean)
* @author <a href="mailto:125671254@qq.com">Pan Xinwen</a>panxinwen
* @date 2018年4月29日 下午7:25:08
*
*/
@Component
public class BeanUtil implements ApplicationContextAware {

    private static ApplicationContext applicationContext;

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        if(BeanUtil.applicationContext == null) {
            BeanUtil.applicationContext = applicationContext;
        }
    }

    //获取applicationContext
    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }

    //通过name获取 Bean.
    public static Object getBean(String name){
        return getApplicationContext().getBean(name);
    }

    //通过class获取Bean.
    public static <T> T getBean(Class<T> clazz){
        return getApplicationContext().getBean(clazz);
    }

    //通过name,以及Clazz返回指定的Bean
    public static <T> T getBean(String name,Class<T> clazz){
        return getApplicationContext().getBean(name, clazz);
    }
}
